I don't think you are going to have any "good" luck with this. Priming is more than just adding sugar. Once it is added you have to gently stir it or you will end up with inconsistent carbonation levels in your bottles. Once you stir you are going to rouse everything on the bottom and your bottles will be full of crap. Eventually it would settle out but in time that same crap will cause undesirable flavors in your precious beer.
My suggestion is to rack to a simple bottling bucket, add your sugar, stir gently and bottle out of the bucket. If that isn't feasible you can bottle off of your primary and use one of the products I have linked to below. These are simple sugar tablets. Thus you fill the bottle with beer, add a tab to each bottle and cap. This way you get consistent results without stirring up the shit in the fermenter. Best of luck!
Cooper's Carbonation DropsMunton's CarbTabs